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139662985469952 = 213373539229399
BaseRepresentation
bin11111110000010111010010…
…101000110010000000000000
3200022111122120120221120012210
4133300113102220302000000
5121301214243240014302
61213012142332022120
741263213656040560
oct3760272250620000
9608448516846183
10139662985469952
114055681532274a
12137b7757301940
135cc12171c7309
14266ba202c0da0
151122e4c4b966c
hex7f05d2a32000

139662985469952 has 224 divisors, whose sum is σ = 425735715456000. Its totient is φ = 39892260814848.

The previous prime is 139662985469951. The next prime is 139662985469999. The reversal of 139662985469952 is 259964589266931.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (84).

It is not an unprimeable number, because it can be changed into a prime (139662985469951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608706549 + ... + 608935947.

Almost surely, 2139662985469952 is an apocalyptic number.

139662985469952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139662985469952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212867857728000).

139662985469952 is an abundant number, since it is smaller than the sum of its proper divisors (286072729986048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139662985469952 is an equidigital number, since it uses as much as digits as its factorization.

139662985469952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232974 (or 232950 counting only the distinct ones).

The product of its digits is 13604889600, while the sum is 84.

The spelling of 139662985469952 in words is "one hundred thirty-nine trillion, six hundred sixty-two billion, nine hundred eighty-five million, four hundred sixty-nine thousand, nine hundred fifty-two".